# Question: Find the probability that a randomly selected adult has an

Find the probability that a randomly selected adult has an IQ between 90 and 110 (referred to as the normal range).

## Answer to relevant Questions

Find the probability that a randomly selected adult has an IQ between 110 and 120 (referred to as bright normal). Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard deviation of ...When a water taxi sank in Baltimore’s Inner Harbor, an investigation revealed that the safe passenger load for the water taxi was 3500 lb. It was also noted that the mean weight of a passenger was assumed to be 140 lb. ...After 1964, quarters were manufactured so that the weights had a mean of 5.67 g and a standard deviation of 0.06 g. Some vending machines are designed so that you can adjust the weights of quarters that are accepted. If many ...In a recent year, the U.S. Mint in Denver manufactured 270 million quarters. As part of the mint’s quality control program, samples of quarters are randomly selected each day for detailed inspection to confirm that they ...Repeat Exercise using variances instead of means. Use the population of ages {56, 49, 58, 46} of the four U.S. presidents (Lincoln, Garfield, McKinley, Kennedy) when they were assassinated in office. Assume that random ...Post your question